Out-of-bounds read in Linux kernel - CVE-2023-39192

Vulnerability identifier: #VU81921

CSH Severity: Low

CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

CVE-ID: CVE-2023-39192

CWE-ID: CWE-125

Exploitation vector: Local access

Exploit availability: No public exploit available

Affected software:
Linux kernel
Amazon Linux AMI
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Linux Enterprise Server 11
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise High Availability Extension 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Real Time 12
SUSE Linux Enterprise Software Development Kit 12
SUSE CaaS Platform
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
Anolis OS
SUSE Enterprise Storage
Red Hat CodeReady Linux Builder for ARM 64
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat CodeReady Linux Builder for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Real Time
Red Hat Enterprise Linux for Real Time for NFV
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for Power, little endian
SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE
SUSE Linux Enterprise Live Patching
SUSE Linux Enterprise Workstation Extension 12
Ubuntu
Slackware Linux
SUSE Linux Enterprise Server 15 SP1 LTSS
SUSE Linux Enterprise Server 15 SP1 Business Critical Linux
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS
SUSE Linux Enterprise Server 15 SP2 LTSS
SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS
SUSE Linux Enterprise Server 15 SP2 Business Critical Linux
SUSE Linux Enterprise Server 15 SP3 Business Critical Linux
SUSE Linux Enterprise Server 15 SP3 LTSS
Legacy Module
Development Tools Module
Basesystem Module
Public Cloud Module
SUSE Real Time Module
openSUSE Leap
openEuler
RecoverPoint for Virtual Machines
IBM Qradar SIEM
Juniper Secure Analytics (JSA)
Dell EMC NetWorker vProxy
SmartFabric OS10
ObjectScale
Storage Copy Data Management
Technical Support Appliance
PowerFlex rack
IBM Cloud Pak for Watson AIOps
linux-image-aws (Ubuntu package)
linux-image-azure-lts-18.04 (Ubuntu package)
linux-image-gcp-lts-18.04 (Ubuntu package)
linux-image-azure (Ubuntu package)
linux-image-gcp (Ubuntu package)
linux-image-gke (Ubuntu package)
linux-image-4.4.0-1126-kvm (Ubuntu package)
linux-image-4.4.0-1163-aws (Ubuntu package)
linux-image-4.4.0-248-generic (Ubuntu package)
linux-image-4.4.0-248-lowlatency (Ubuntu package)
linux-image-4.15.0-1172-azure (Ubuntu package)
linux-image-generic (Ubuntu package)
linux-image-generic-lts-xenial (Ubuntu package)
linux-image-kvm (Ubuntu package)
linux-image-lowlatency (Ubuntu package)
linux-image-lowlatency-lts-xenial (Ubuntu package)
linux-image-virtual (Ubuntu package)
linux-image-virtual-lts-xenial (Ubuntu package)
linux-image-4.4.0-1125-aws (Ubuntu package)
linux-image-4.15.0-1147-kvm (Ubuntu package)
linux-image-4.15.0-1163-aws (Ubuntu package)
linux-image-4.15.0-220-generic (Ubuntu package)
linux-image-4.15.0-220-lowlatency (Ubuntu package)
linux-image-aws-lts-18.04 (Ubuntu package)
linux-image-oracle (Ubuntu package)
linux-image-4.15.0-1126-oracle (Ubuntu package)
linux-image-aws-hwe (Ubuntu package)
linux-image-generic-hwe-16.04 (Ubuntu package)
linux-image-lowlatency-hwe-16.04 (Ubuntu package)
linux-image-oem (Ubuntu package)
linux-image-virtual-hwe-16.04 (Ubuntu package)
linux-image-4.15.0-1157-gcp (Ubuntu package)
linux-image-5.4.0-1115-oracle (Ubuntu package)
linux-image-raspi-hwe-18.04 (Ubuntu package)
linux-image-virtual-hwe-18.04 (Ubuntu package)
linux-image-snapdragon-hwe-18.04 (Ubuntu package)
linux-image-lowlatency-hwe-18.04 (Ubuntu package)
linux-image-ibm (Ubuntu package)
linux-image-generic-hwe-18.04 (Ubuntu package)
linux-image-5.4.0-1100-raspi (Ubuntu package)
linux-image-oem-osp1 (Ubuntu package)
linux-image-5.4.0-169-lowlatency (Ubuntu package)
linux-image-5.4.0-169-generic (Ubuntu package)
linux-image-5.4.0-1121-azure (Ubuntu package)
linux-image-5.4.0-1120-gcp (Ubuntu package)
linux-image-5.4.0-1116-aws (Ubuntu package)
linux-image-5.4.0-1063-ibm (Ubuntu package)
kgraft-patch-4_12_14-122_179-default
kernel-livepatch-4_12_14-150100_197_160-default
kernel-livepatch-5_3_18-150200_24_169-default
kernel-livepatch-5_3_18-150200_24_169-default-debuginfo
kernel-livepatch-SLE15-SP2_Update_42-debugsource
kernel-livepatch-5_3_18-150300_59_141-preempt-debuginfo
kernel-livepatch-5_3_18-150300_59_141-preempt
kernel-livepatch-5_3_18-150300_59_141-default-debuginfo
kernel-livepatch-5_3_18-150300_59_141-default
kernel-livepatch-SLE15-SP3_Update_38-debugsource
kernel-livepatch-5_14_21-150400_15_56-rt-debuginfo
kernel-livepatch-SLE15-SP4-RT_Update_14-debugsource
kernel-livepatch-5_14_21-150400_15_56-rt
kernel-livepatch-5_14_21-150400_24_92-default-debuginfo
kernel-livepatch-5_14_21-150400_24_92-default
kernel-livepatch-SLE15-SP4_Update_19-debugsource
kernel-livepatch-SLE15-SP5-RT_Update_6-debugsource
kernel-livepatch-5_14_21-150500_13_21-rt
kernel-livepatch-SLE15-SP5_Update_6-debugsource
kernel-livepatch-5_14_21-150500_55_31-default
kernel-livepatch-5_14_21-150500_13_21-rt-debuginfo
kernel-livepatch-5_14_21-150500_55_31-default-debuginfo
kernel-trace-base
kernel-trace
kernel-xen
kernel-xen-base
kernel-source
kernel-ec2-devel
kernel-default-devel
kernel-ec2-base
kernel-xen-devel
kernel-default-base
kernel-trace-devel
kernel-syms
kernel-ec2
kernel-default
kernel-rt_debug-debuginfo
dlm-kmp-rt-debuginfo
kernel-rt-debugsource
ocfs2-kmp-rt
kernel-rt-devel-debuginfo
cluster-md-kmp-rt-debuginfo
kernel-syms-rt
kernel-rt_debug-debugsource
gfs2-kmp-rt
ocfs2-kmp-rt-debuginfo
gfs2-kmp-rt-debuginfo
kernel-rt-devel
kernel-rt-base-debuginfo
kernel-rt_debug-devel-debuginfo
cluster-md-kmp-rt
kernel-rt-base
kernel-rt-debuginfo
kernel-rt_debug-devel
dlm-kmp-rt
kernel-devel-rt
kernel-source-rt
kernel-rt_debug
kernel-rt
kernel-devel-azure
kernel-source-azure
kernel-azure-debuginfo
kernel-azure-devel
kernel-azure-debugsource
kernel-syms-azure
kernel-azure-base
kernel-azure
kernel-azure-base-debuginfo
kernel-default-debugsource
kernel-default-kgraft-devel
kernel-default-debuginfo
kernel-default-kgraft
kernel-default-extra-debuginfo
kernel-docs
kernel-obs-build
kernel-obs-build-debugsource
kernel-default-base-debuginfo
kernel-default-extra
gfs2-kmp-default
dlm-kmp-default-debuginfo
dlm-kmp-default
cluster-md-kmp-default-debuginfo
cluster-md-kmp-default
gfs2-kmp-default-debuginfo
ocfs2-kmp-default-debuginfo
ocfs2-kmp-default
kernel-default-man
kernel-default-devel-debuginfo
kernel-devel
kernel-macros
kernel-vanilla-base
kernel-vanilla-devel
kernel-vanilla-debuginfo
kernel-debug-base-debuginfo
kernel-debug-base
kernel-kvmsmall
kernel-zfcpdump
kernel-debug
kernel-zfcpdump-debuginfo
reiserfs-kmp-default-debuginfo
reiserfs-kmp-default
kernel-zfcpdump-debugsource
kernel-default-livepatch
kernel-default-livepatch-devel
kernel-zfcpdump-man
kernel-vanilla
kernel-kvmsmall-base
kernel-kvmsmall-base-debuginfo
kernel-vanilla-debugsource
kernel-vanilla-devel-debuginfo
kernel-vanilla-base-debuginfo
kernel-vanilla-livepatch-devel
kernel (Red Hat package)
kernel-rt (Red Hat package)
kernel-tools
python3-perf
kernel-abi-stablelists
perf
kernel-tools-libs-devel
kernel-tools-libs
kernel-modules-extra
kernel-modules
kernel-headers
kernel-doc
bpftool
kernel
kernel-core
kernel-cross-headers
kernel-debug-core
kernel-debug-devel
kernel-debug-modules
kernel-debug-modules-extra
python3-perf-debuginfo
python2-perf-debuginfo
bpftool-debuginfo
kernel-debugsource
kernel-debuginfo
perf-debuginfo
python2-perf
kernel-tools-devel
kernel-tools-debuginfo
kernel-modules-internal
python-perf
kernel-preempt
kernel-preempt-devel-debuginfo
kernel-preempt-debugsource
kernel-preempt-debuginfo
kernel-preempt-devel
dtb-zte
kernel-obs-qa
dtb-socionext
dtb-broadcom
dtb-rockchip
kernel-source-vanilla
dtb-aarch64
dtb-al
dtb-exynos
dtb-xilinx
dtb-cavium
dtb-apm
dtb-arm
dtb-altera
dtb-amd
dtb-lg
dtb-mediatek
dtb-nvidia
dtb-allwinner
dtb-qcom
dtb-sprd
dtb-hisilicon
dtb-freescale
dtb-marvell
dtb-amlogic
dtb-renesas
kernel-default-optional
kernel-default-optional-debuginfo
kernel-debug-devel-debuginfo
dlm-kmp-64kb
kselftests-kmp-default
kernel-debug-debuginfo
kernel-kvmsmall-debugsource
kernel-kvmsmall-livepatch-devel
kernel-debug-livepatch-devel
kernel-debug-debugsource
kernel-kvmsmall-debuginfo
kernel-kvmsmall-devel
kselftests-kmp-preempt
reiserfs-kmp-preempt
gfs2-kmp-preempt
kernel-preempt-extra
kernel-preempt-extra-debuginfo
dlm-kmp-preempt
kernel-preempt-livepatch-devel
reiserfs-kmp-preempt-debuginfo
kernel-preempt-optional
ocfs2-kmp-preempt-debuginfo
kernel-preempt-optional-debuginfo
cluster-md-kmp-preempt-debuginfo
gfs2-kmp-preempt-debuginfo
ocfs2-kmp-preempt
dlm-kmp-preempt-debuginfo
kselftests-kmp-preempt-debuginfo
cluster-md-kmp-preempt
kselftests-kmp-default-debuginfo
cluster-md-kmp-64kb
kernel-64kb-devel
kernel-64kb-debugsource
reiserfs-kmp-64kb-debuginfo
gfs2-kmp-64kb-debuginfo
dlm-kmp-64kb-debuginfo
kernel-64kb-extra
ocfs2-kmp-64kb-debuginfo
kernel-64kb
kernel-64kb-devel-debuginfo
kernel-64kb-optional-debuginfo
ocfs2-kmp-64kb
cluster-md-kmp-64kb-debuginfo
kernel-64kb-optional
kernel-64kb-livepatch-devel
gfs2-kmp-64kb
reiserfs-kmp-64kb
kernel-docs-html
kselftests-kmp-64kb
kernel-kvmsmall-devel-debuginfo
kernel-64kb-debuginfo
kernel-64kb-extra-debuginfo
kselftests-kmp-64kb-debuginfo
kernel-default-base-rebuild
linux-image-generic-lpae (Ubuntu package)
linux-image-5.4.0-169-generic-lpae (Ubuntu package)
linux-image-5.4.0-1028-iot (Ubuntu package)
linux-image-xilinx-zynqmp (Ubuntu package)
linux-image-5.4.0-1035-xilinx-zynqmp (Ubuntu package)
linux-image-ibm-lts-20.04 (Ubuntu package)
linux-image-bluefield (Ubuntu package)
linux-image-5.4.0-1076-bluefield (Ubuntu package)
linux-image-gkeop-5.4 (Ubuntu package)
linux-image-gkeop (Ubuntu package)
linux-image-5.4.0-1083-gkeop (Ubuntu package)
linux-image-raspi (Ubuntu package)
linux-image-raspi2 (Ubuntu package)
linux-image-5.4.0-1104-kvm (Ubuntu package)
linux-image-oracle-lts-20.04 (Ubuntu package)
linux-image-aws-lts-20.04 (Ubuntu package)
linux-image-gcp-lts-20.04 (Ubuntu package)
linux-image-azure-lts-20.04 (Ubuntu package)
kernel-azure-optional
kernel-azure-extra-debuginfo
gfs2-kmp-azure-debuginfo
kselftests-kmp-azure
kernel-azure-optional-debuginfo
reiserfs-kmp-azure
kernel-azure-livepatch-devel
kernel-azure-extra
dlm-kmp-azure
gfs2-kmp-azure
kselftests-kmp-azure-debuginfo
ocfs2-kmp-azure
cluster-md-kmp-azure-debuginfo
kernel-azure-devel-debuginfo
cluster-md-kmp-azure
dlm-kmp-azure-debuginfo
ocfs2-kmp-azure-debuginfo
reiserfs-kmp-azure-debuginfo
dtb-amazon
dtb-apple
kernel-rt-optional
kernel-rt-livepatch-devel
kselftests-kmp-rt-debuginfo
kernel-rt-vdso-debuginfo
kernel-rt-livepatch
kernel-rt-extra
kernel-rt-optional-debuginfo
kernel-rt-vdso
kernel-rt_debug-vdso-debuginfo
kselftests-kmp-rt
kernel-rt_debug-livepatch-devel
kernel-rt-extra-debuginfo
kernel-rt_debug-vdso
reiserfs-kmp-rt-debuginfo
reiserfs-kmp-rt
kernel-azure-vdso
kernel-azure-vdso-debuginfo
kernel-debug-vdso-debuginfo
kernel-kvmsmall-vdso
kernel-default-vdso
kernel-debug-vdso
kernel-kvmsmall-vdso-debuginfo
kernel-default-vdso-debuginfo
linux-image-generic-64k (Ubuntu package)
linux-image-lowlatency-64k (Ubuntu package)
linux-image-5.15.0-91-lowlatency (Ubuntu package)
linux-image-5.15.0-91-generic-lpae (Ubuntu package)
linux-image-5.15.0-91-generic-64k (Ubuntu package)
linux-image-5.15.0-91-lowlatency-64k (Ubuntu package)
linux-image-5.15.0-91-generic (Ubuntu package)
linux-image-lowlatency-64k-hwe-20.04 (Ubuntu package)
linux-image-lowlatency-hwe-20.04 (Ubuntu package)
linux-image-generic-64k-hwe-20.04 (Ubuntu package)
linux-image-generic-hwe-20.04 (Ubuntu package)
linux-image-generic-lpae-hwe-20.04 (Ubuntu package)
linux-image-oem-20.04 (Ubuntu package)
linux-image-oem-20.04b (Ubuntu package)
linux-image-oem-20.04c (Ubuntu package)
linux-image-oem-20.04d (Ubuntu package)
linux-image-virtual-hwe-20.04 (Ubuntu package)
linux-image-gkeop-5.15 (Ubuntu package)
linux-image-5.15.0-1034-gkeop (Ubuntu package)
linux-image-nvidia-lowlatency (Ubuntu package)
linux-image-nvidia (Ubuntu package)
linux-image-5.15.0-1042-nvidia (Ubuntu package)
linux-image-5.15.0-1042-nvidia-lowlatency (Ubuntu package)
linux-image-raspi-nolpae (Ubuntu package)
linux-image-5.15.0-1044-ibm (Ubuntu package)
linux-image-5.15.0-1044-raspi (Ubuntu package)
linux-image-5.15.0-1046-intel-iotg (Ubuntu package)
linux-image-gcp-lts-22.04 (Ubuntu package)
linux-image-gke-5.15 (Ubuntu package)
linux-image-5.15.0-1048-kvm (Ubuntu package)
linux-image-5.15.0-1048-gke (Ubuntu package)
linux-image-5.15.0-1048-gcp (Ubuntu package)
linux-image-oracle-lts-22.04 (Ubuntu package)
linux-image-5.15.0-1049-oracle (Ubuntu package)
linux-image-aws-lts-22.04 (Ubuntu package)
linux-image-5.15.0-1051-aws (Ubuntu package)
linux-image-azure-lts-22.04 (Ubuntu package)
linux-image-5.15.0-1053-azure (Ubuntu package)
linux-image-5.15.0-1053-azure-fde (Ubuntu package)
linux-image-azure-fde (Ubuntu package)
linux-image-azure-cvm (Ubuntu package)
linux-image-azure-fde-lts-22.04 (Ubuntu package)
linux-5.15.139/kernel-modules
linux-5.15.139/kernel-huge
linux-5.15.139/kernel-generic
linux-5.15.139/kernel-headers
linux-image-6.2.0-39-generic (Ubuntu package)
linux-image-6.2.0-39-generic-64k (Ubuntu package)
linux-image-6.2.0-39-generic-lpae (Ubuntu package)
linux-image-generic-64k-hwe-22.04 (Ubuntu package)
linux-image-generic-lpae-hwe-22.04 (Ubuntu package)
linux-image-generic-hwe-22.04 (Ubuntu package)
linux-image-virtual-hwe-22.04 (Ubuntu package)
linux-image-6.2.0-1010-starfive (Ubuntu package)
linux-image-starfive (Ubuntu package)
linux-image-6.2.0-1013-nvidia (Ubuntu package)
linux-image-6.2.0-1013-nvidia-64k (Ubuntu package)
linux-image-nvidia-6.2 (Ubuntu package)
linux-image-nvidia-64k-6.2 (Ubuntu package)
linux-image-nvidia-64k-hwe-22.04 (Ubuntu package)
linux-image-nvidia-hwe-22.04 (Ubuntu package)
linux-image-6.2.0-1017-aws (Ubuntu package)
linux-image-6.2.0-1017-oracle (Ubuntu package)
linux-image-6.2.0-1018-kvm (Ubuntu package)
linux-image-6.2.0-1018-lowlatency (Ubuntu package)
linux-image-6.2.0-1018-lowlatency-64k (Ubuntu package)
linux-image-6.2.0-1018-azure (Ubuntu package)
linux-image-6.2.0-1018-azure-fde (Ubuntu package)
linux-image-lowlatency-hwe-22.04 (Ubuntu package)
linux-image-lowlatency-64k-hwe-22.04 (Ubuntu package)
linux-image-6.2.0-1018-raspi (Ubuntu package)
linux-image-6.2.0-1020-gcp (Ubuntu package)
linux-image-6.2.0-1021-gcp (Ubuntu package)
IBM Cloud Object Storage Systems
linux-image-intel-iotg (Ubuntu package)
linux-image-intel (Ubuntu package)
RecoverPoint for VMs
Dell EMC VxRail Appliance

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to a boundary condition within the the u32_match_it() function in Netfilter subsystem in Linux kernel. A local user can trigger an out-of-bounds read error and gain access to sensitive information.

Install update from vendor's website.

• https://bugzilla.redhat.com/show_bug.cgi?id=2226784
• https://www.zerodayinitiative.com/advisories/ZDI-CAN-18408/
• https://lore.kernel.org/all/20230828132107.18376-1-wander@redhat.com/